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G6Tanuki · 11th Jul 2018, 8:38 pm

A short fat bit of adhesive-lined heatshrink sleeving is my go-to for this; OK it doesn't work on 'power' valves like 807s where the glass bottle's expected to be running at well above the softening point of heatshrink-sleeve glue, but for signal-level valves it works just fine.

And it has history: I've got several Air-Ministry VR100/VR101 valves here which had the heatshrink-treatment back in the 1960s and are still happily working.

11th Jul 2018, 8:38 pm	#5
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 14,007	Re: Valve bases A short fat bit of adhesive-lined heatshrink sleeving is my go-to for this; OK it doesn't work on 'power' valves like 807s where the glass bottle's expected to be running at well above the softening point of heatshrink-sleeve glue, but for signal-level valves it works just fine. And it has history: I've got several Air-Ministry VR100/VR101 valves here which had the heatshrink-treatment back in the 1960s and are still happily working.